Preterm Birth in Alabama · 2014-11-19 · March of Dimes 2014 Premature Birth Report Card ....
Transcript of Preterm Birth in Alabama · 2014-11-19 · March of Dimes 2014 Premature Birth Report Card ....
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Preterm Birth in Alabama We Can…and We Have to...Do Better
Joseph R. Biggio, MD Department of Obstetrics and Gynecology
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Scope of the problem: National
• 30% Increase in preterm birth from 1980’s – 2006
• ~450,000 – 500,000 infants/yr • Peaked in 2006
• PTB < 37 wk 12.8 % • PTB < 34 wk 3.7 % • PTB 34-36 wk 9.2 %
Hamilton et al, NVSR, NCHS 2014
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Why the increase in PTB until 2006?
• Increase utilization of ultrasound dating • Diminishes potential error of LMP dating
• Fertility treatment • Increase in multiples
• Scheduled preterm birth • Byproduct of improved neonatal care
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Why the decrease since 2006?
• Changes in fertility treatment • Fewer higher order multiples
• Progesterone availability • Probably only a small contributor
• Efforts to reduce elective early delivery
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Why does preterm birth matter?
• Major cause of neonatal death and long term morbidity
• Major societal burden • Increased utilization of healthcare and social
service resources • Costs increase for each lower week of GA at
birth • Decreases school performance and
productivity
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Economic costs of Preterm Birth
• $26.2 billion/year • Term infant
• $3,330 for first yr • LOS 1.3 d
• Preterm infant • $32,000 for first yr • LOS 13 d
IOM, Preterm Birth: Causes, Consequences and Prevention, 2006
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WHO: Global Action Report on PTB
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Why does the problem persist?
• Multiple pathways converge to cause PTB • Various contributors • Extent of contribution • Triggering events
• Lack of understanding interferes with: • Risk identification • Targeted intervention
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March of Dimes 2014 Premature Birth Report Card
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Premature Birth Report Card for 2013
• PTB < 37 wk 11.4 %
• PTB < 34 wk 3.4 %
• PTB 34-36 wk 8%
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Premature Birth Report Card for 2013
• PTB < 37 wk 15.1 %
• PTB 34-36 wk • 2012 10.0 %
• 2013 9.7 %
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Rate of Preterm Birth in Alabama
15.3 14.9 16.4
11.9 11.9 11.8
2011 2012 2013
LMP CLINICAL
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Preterm Birth < 35 wk: Alabama
7.2
7.5
8.0 7.9
7.8
7.3 7.4
7.0 6.8
6.7
8.0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
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Preterm Birth < 32 weeks: Alabama
3.0 3.1 3.3 3.2 3.3
3.0 3.0 2.9 2.8 2.7
3.6
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
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What does this translate to?
• In Alabama, on average each week: • 164 babies are born prior to 37 weeks
• 28 are born prior to 32 weeks
• 113 weigh less than 2500 gm at birth
• 21 weigh less than 1500 gm at birth
www.marchofdimes.com/peristats
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PTB and Infant Mortality in Alabama: 2013
• 500 infant deaths • 331 <37 wk –66% of deaths • 294 <35 wk—59% of deaths • 255 <32 wk –51% of deaths • 218 <28 wk –44% of deaths
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PTB related to perinatal and infant mortality
• LBW (<2500 gm) • US: 7.9% of births66% of deaths • Alabama 2012: 10% of births
• VLBW (<1500 gm)
• 1.5% of births 50% of deaths • Alabama 2012: 1.9%
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Racial Disparities in US in Preterm Birth
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Racial Disparities in Preterm Birth Rate: Alabama vs US
12.3
19
14.3
19.8
13.2
10.3
16.5
11.6 13.4
10
White Black Hispanic Native American
Asian
Alabama US
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Infant and Perinatal Mortality: Alabama
0
2
4
6
8
10
12
14
16
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Perinatal Mortality Rate
Infant Mortality Rate
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Significance of Disparity in PTB Rates
• Leading cause of infant death • Caucasian and Hispanic—Congenital
Anomalies
• African American—Preterm Birth
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Racial Disparity: Infant Mortality in Alabama 2012
• White 7.0 per 1,000
• African American 13.1 per 1,000
• Hispanic 7.4 per 1,000
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Preterm Birth: Causes and Contributors
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Epidemiologic and Sociodemographic Risk Factors for PTB
• Maternal Stress • Maternal Age • Smoking • Poverty • Education
• Health Status • Nutrition • Prenatal Care • Interpregnancy
Interval
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Causes and Contributors to PTB
• PROM • Cervical
Insufficiency • Decidual
Hemorrhage • Placental
Insufficiency
• Infection/ Inflammation • Maternal co-
morbidities • Uterine Distension • Prior PTB/Genetics
NICHD GPN for PTB Research, unpublished data
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Strongest Contributors to PTB
• Infection/Inflammation • Especially with early Spontaneous PTB
• Decidual Hemorrhage
• Cervical Insufficiency
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Racial Disparity in Contributors
• African American • Maternal Stress • Cervical Insufficiency
• Caucasian • Decidual hemorrhage • Placental dysfunction • Uterine distension
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Preterm Birth MOD Targeted Factors: Alabama 2013
• Uninsured Women
• Late Preterm Birth
• Smoking
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Disparity in Preterm Birth: Not just racially defined
• State and Regional Geographic Diversity • Poverty • Education • Employment • Health Status
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Disparity in Preterm Birth: Not just racially defined
• Neighborhood Level • Housing • Crime • Access to Healthy Food • Social Support • Physical Environment • Exercise Capability
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Alabama 2013
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Geographic Diversity in Alabama
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Prenatal Care Provision
72.8 74.1 72.8
12.8 12.5 13.1
2011 2012 2013
Adequate Inadequate
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Adequate Prenatal Care by Racial Group
0
10
20
30
40
50
60
70
80
2011 2012 2013
White Black Hispanic Native American Asian
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Insurance Status in Alabama
44 45 47 48 48 48 50 51 53 51 51
0
10
20
30
40
50
60
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Medicaid Private Self Pay
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Insurance Status in PTB: Alabama
50 50 51 51 51 53 54 56 58
56 56
0
10
20
30
40
50
60
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Medicaid
Private
Self-Pay
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Insurance Status by Racial Group: 2013 Alabama
39.1
70.9 75.1
56.4
24.2
14.9
1.7 2.4 7.9
0
10
20
30
40
50
60
70
80
White Black Hispanic
Medicaid Private Self-Pay
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PTB Rate by Insurance Status
18.6 18.8 19.9 19.2 18.5
17.4 18.2 17.4 16.7 16.3 17.9
0
5
10
15
20
25
30
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Medicaid Private Self Pay
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Insurance Status of Infant Mortality: 2013
60
32
4
0
10
20
30
40
50
60
70
Medicaid Private Self Pay
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Smoking during Pregnancy: Alabama
10.8
11.2
11.6 11.8
12.0 11.8
11.1 11.2
10.6 10.7 10.8
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
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Insurance status by Smoking
0
10
20
30
40
50
60
70
80
90
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Smoker Medicaid Non-Smoker Medicaid Smoker Private Non-Smoker Private
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Infant Mortality: Smoker vs Non-Smoker per 1,000 livebirths
0
2
4
6
8
10
12
14
2004 2006 2007 2008 2009 2010 2011 2012 2013
Smoker Non-Smoker
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Teen Births: Alabama Percent of Births
13.9 14 13.1
13.8 13.7 13.5 13.4 12.4
11.3 10.7 9.3
0
2
4
6
8
10
12
14
16
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
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Late Preterm and Early Term Birth: Significance and Changes
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Stillbirths in Alabama: Per 1,000 births
9.0 9.0 9.2
1.8 1.8 1.5
2013 2012 2011
<37 37-40
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Summary • Alabama continues to have one of the highest
rates of PTB in the US • The high rate of PTB is a major contributor to the
high perinatal mortality rate • There are significant racial and geographic
disparities • We have made progress in reducing early elective
deliveries • We have tremendous opportunities for
improvement